Unloading attachment for cars



c. u. MAC K.

UNLOADING ATTACHMENT FOR CARS.

APPLICATION HLED JUNE 24, 1920.

1,373,623. Patented Apr. 5, 1921.

2 SHEETS-SHEET 1- C. D MACK.

UNLOADING ATTACHMENT FOR CARS.

APPUCATION FTLED JUNE 24, I920- T 1,373, 23, Patented Apr. 5,1921.

2 $HEETSSHEET Z.

Z6 r Z u A 3 10 Z/ 50 6 51 nuento'l 3513 $4 mai PATENT OFFICE.

CHARLES I). MAGK, 0F GOOLEY, ARIZONA.

UNLOAIDENG ATTACHMENT FOR CARS.

eas es.-

spceification of Letters Patent.

Patented Apr. 5, 1921.

Application filed June 24, 1920. Serial No. 391,274.

To all whom it may, concern:

Be itknown that I, Ci-nmnns D. MACK, a citizen of the United States, residing at Cooley, in the county of Apache and State 01' Arizona, have invented certain new and useful Improvements in Unloading Attachments for Cars 5 and I do hereby declare the following to be a full, clear, and exact description of the same, reference being hadto the accompanying drawings, forming part of this specification.

This. invention relates to platform cars particularly designed for the transportation of logs and has for one of its objects the pro vision of log retaining stakes and operating mechanism "for releasing the stakes to per mit unloading the logs, the operating mechanism being so arranged that it will be actuated by the application of the car brakes whether they be applied by hand or by motive fluid derived from the locomotive or other suitable source.

A further object is the provision of a stake locking mechanism that can be readily applied to cars without the necessity of using attachments of unusual construction, thus greatly reducing the cost oi manufacture and application of the invention to carsnow in use.

in the accompanying drawings:

Figure 1 is a plan view of a car embodying the present invention;

Fig. 2 is an end view of the ca;

Fig. 3 is a top plan view of one end of one oi? the bunks, and i Fig. i is an end shown in Fig. 3.

The legs, when loadedon the car, are supported on the transversely extending bunks 10, preferably of wood. The bunks are supelevation of the parts ported on trucks 11, 12 in the usual manner and the car is provided with. a conventional form oi: braking mechanism. As shown in the present instance, the brake shoes are moved into and out of engagement with the wheel treads through a series of connections by means of motive fluid supplied to a cylinder from the locomotive, or the connections may, in the absence of motive fluid, be actuated by hand brake 1.5. The connectiens between the cylinder let and the shoes of truck 11 consist of a link 16 connected at one end to a cross member 17 on which the shoes 13 are mounted and at the other end to a link lever 18 pivoted to a second cross member 19 carrying brake shoes 20. Lever link 16 lever 18 mounted on cross mem-.

ber 19?, link 21 and lever 22 connected at one end to link 21:. The other end of lever 22 is pivoted on the car frame and intermediate its ends said lever is connected to lever 22 by an equalizer bar 25 whereby when lever 22 is actuated to apply the brakes of truck 11 the brakes on the other truck will be' simultaneously applied with equal pressure, due to the floating connection between the lever 22 and equalizer bar 25, as is well understood and common in the art.

The stakes 26 for retaining the logs on the bunks 10 are mounted to swing in a verti cal plane on pins 27 extending transversely through the bunks adjacent the'ends of the latter, the pins 27 being retained in the bunks by any suitable securing means. Stakes 26 are mounted a little to one side of their longitudinal centers so that when placed in a vertical position. to engage logs loaded on the car their ends will project a considerable distance above the bunks and to normally look the stakes in this position pull pins 28 are slidably mounted in transversely extending openings in the bunks 10 below and a little to one'side of pins 27.

One end of each pull pin 28 normally pro 7 jects beyond the side of the bunk and en gages the lower ends of stakes 26 when the latter are in log engaging position but, as will be understood, withdrawal of the pull pins from engagement with the stakes will permit the stakes to swing downwardly to a depending position. This movement of the stakes is augmented by the tendency of the logs to roll off upon the stakes being reends being provided with alined apertures levers 30 on one side of the car being preibrake rod 24.

erably connected to links 21, 21 respectively, and those on the other side to the Application of the brakes causes the levers to move on their pivots in the directions indicated by arrows in Fig. 1 whereupon all of the stakes will be released and the logs discharged, the bunks being inclined as before described.

To prevent discharge oi the logs should the brakes'be applied before the cars reach their destination levers 30 and pull pins 28 are disconnected by removal of pivot pins 32 and the latter placed in apertures 33 in the ends of the pull pins where they remain until immediately before the cars reach their destination when the levers and pins are again connected. The pull pins are, of course, moved to their locking positions before they are disconnected.

This construction is simple, comparatively inexpensive to manufacture and can readily be placed on cars now in use with practically noalteration in the several parts of the cars and to avoid undue wear on the end portions of the bunks cheek plates 34, properly apertured are positioned on opposite sides of the bunks as shown in Fig. 3, to prevent contact between the sides of the bunks and the stakes, pull pin head, and pivot pin head. By removably securing the several parts in the ends of the bunks any one oft-hem may be taken out in case of breakage and a new part substituted.

I claim:

1. The combination with the brake actuating mechanism of a car, of a plurality of pivotally mounted car stakes on opposite sides of the car, means for locking said stakes in upright position, and connections between said locking means and brake mechanism for releasing said locking means.

2. The combination with the brake actuating mechanism of a plurality of transversel extendin bunks 'car stakes ivb 7 otally mounted on the bunks and extending in an upright position above the bunks, locking pins secured in the bunks and adapted to engage and hold said stakes in upright position, and connections between the brake mechanism and locking pins whereby application of the brakes will disengage said pins from the stakes and permit the latter to assume a depending position below the bunks 3. The combination with the brake actuatmgmechanrsm, ot a plurality of transverse bunks upwardly extending stakes pivotally mounted adjacent the ends of the bunks, pins extending through the bunks adapted to engage said stakes and lock them in upright position, abutments on the bunks, and levers iulcrumed on said abutments, said lovers being connected to said locking pins and the brake actuating mechanism whereby application of the brakes will disengage the locking pins and release the stakes.

CHARLES D. MACK. 

